Viet Nam News – The Ministry of Transport (MoT) plans to tighten control of emissions of vehicles in circulation as well as used vehicles imported to curb air pollution. Under a draft decision on new emission standards which is open to the public to collect opinions, vehicles manufactured prior to 1999 will continue to face emissions standards at Level 1. Level 2 will be applied for vehicles manufactured between 1999-2008 from January 1, 2021 and vehicles made after 2008 from January 1, 2020.
In 2011, the Government issued a resolution stipulating all types of new cars used in Việt Nam must meet Euro 4 exhaust emission standards from January 1, 2017 and Euro 5 from January 1, 2022. … By May this year, the number of cars in the country exceeded three million, up 3.2 times compared with 2008, meaning the volume of gas discharged into the environment has hiked substantially.
Source of article and further information: “Transport ministry to set higher emission standards for vehicles” at https://vietnamnews.vn, accessed on 15 November 2018.